/*
 * Copyright (C) 2023-2024. Huawei Technologies Co., Ltd. All rights reserved.
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.huawei.boostkit.hive.expression;

import java.util.List;

public class CastFunctionExpression extends FunctionExpression {
    public CastFunctionExpression(Integer returnType, Integer width, Integer precision, Integer scale) {
        super(returnType, "CAST", 1, width, precision, scale);
    }

    @Override
    public void add(BaseExpression node) {
        if (node instanceof CastFunctionExpression) {
            List<BaseExpression> arguments = ((CastFunctionExpression) node).getArguments();
            arguments.forEach(CastFunctionExpression.super::add);
            return;
        }
        super.add(node);
    }

    public Integer getDataType() {
        return super.getArguments().get(0).getReturnType();
    }

    @Override
    public Integer getReturnType() {
        return super.getReturnType();
    }
}
